考虑边界层自由风速的粗糙床面跃移通量模式
徐杨, 梅凡民, 朱海波

The saltation model for roughness surface incorporating effect of free wind velocity over boundary layer
Yang Xu, Fanmin Mei, Haibo Zhu
图2 孔隙粗糙元孔隙度计算示意图(hs-孔隙粗糙元的高度,ds-孔隙粗糙元的直径, H-虚拟的密实粗糙元高度,Dk-虚拟的密实粗糙元直径)
Fig.2 Schematic illustration for porous elements (hs-porous elements' height, ds-diameter of individual element, H-height of modelled compact element, Dk-diameter of modelled compact element)